On Friday, June 1, Richard Armstrong will defend his dissertation entitled, "PspA regulates lipid droplet homeostasis and bacterial persistence in Mycobacterium, and is a model for studying protein-lipid droplet interactions in prokaryotes". The dissertation defense will take place in the Basic Science Building Microbiology and Immunology Conference Room 276 at 11 a.m. Richard, a PhD Candidate in the Microbiology and Immunology Program is under the advisement of Dr. Thomas Zahrt.